Jar cover wrench



Dec. 13, 1932. R FF 1,890,528

' JAR COVER WRENCH Filed April 6. 1951 IN VEN TOR.

A TTORNE Y.

Patented Dec. 13, 1932 v PATENT OFFICE RUDOLPH IRATZLAFF, OF IDEABIBORN,MICHIGAN JAR COVER WRENCH Application filed April 6, 1931. Serial No.528,040.

This invention relates to jar cover wrenches and an object oftheinvention is to provide a wrench for removing from or tighteningthreaded covers on fruit jars,

' 5 which comprises only two main pieces and which is so constructed asto permit a great pressure to be applied to the cover to prevent thesame from slipping in the wrench.

Another object of the invention is to provide a wrench which is composedof a minimum number of stamped parts thus providing a wrench which ischeap to manufacture and easy to assemble.

Another object of the invention is to provide a wrench composed of onering like piece provided with an extension forming one handle andfurther provided with a serrated por-,

tion on the inner periphery of the ring portion for gripping the coverand a second piece pivoted at two points to the ring like portion andprovided with an extension forming another handle and further providedwith a serrated portion for gripping the portion of the coverdiametrically opposite to that gripped by the serrated portion on thering, when the two handles are moved toward eachother.

A still further object of the invention is to provide a means wherebythe flange on the open end of a jar cover may be straightened so thatthe same may be used again without permitting any leakage of air betweenthe jar cover and the rubber washer against which it seals.

These objects and the several novel features of the invention arehereinafter more fully described and claimed and the preferred form ofconstruction by which these objects are attained is shown in the accompanying drawing in which- Fig. 1 is a plan view of my improved wrench.

r Fig; 2 is a detail of the movable portion of the wrench. I

Fig. 3 is a section taken on line 33 of Fig. 1.

Referring now to the drawing it will be i seen that the wrench comprisesthe two main pieces 1 and 2 formed preferably of stampings. The member1' is provided with the ring like portion 3 and the inner periphery ofthe same is provided with the serrations 4 for grip'pingthe cover of afruit 'jar (not shown) and is further provided with the notched portion5 for a purpose to be later described. It will be understood that the inner diameter of the ring like portion 3 is slightly greater in diameterthan the outside diameter of the ar cover on which it .is to be used,and the inner points of the serrations 1 lie on an imaginary circle theradius of which is approximately equal to the radius of the jar cover sothat all of the points of the serrations will grip thecover at the sametime. An extension 6 is provided on the outer periphery of the ring 3providing a 5 handle or grip.

The member 2 isprovided with the arcuate portion 7 provided on its edgewith the serrations 8, the portion 7 lying in the notch 5 and theserrations 8 on the edge thereof lying in the same plane as theserrations 4 on the inner periphery of the ring like member 3 andpositioned diametrically opposite thereto. The portion 15' of the member2 is depressed an amount equal to the thickness of metal of the member 1and is provided with the elongated slots 9 and 10 extending at an angletoward eachother, and through which the respective pins or rivets 11 and12, provided in the ring like portion 3, extend. The pins or rivets 11and 12 being less in diameter than the width of the slots 9 and 10permit the same to have free movement therein. The member 2' is providedwith the extension 13 lying in the same plane as the handle 6 and formsa grip or handle to permit the same to be moved toward the handle 6 whenit is desired to grip a cover to tighten or loosen the same on a fruitjar. It will be seen that by the wrench to permit the same to be screwedfrom or onto a jar onto which it is desired to afiix the same.

It will be seen that the pin positioned in the slot 9 permits the member2 to move freely thereabove and will permit a far greater amount ofpressure to be applied to the jar cover than that which is applied tothe handles 6 and 13.

By referring to Figs. 1 and 3 it will be seen that a plate is secured toone face of the ring like member 3 and is provided on the inner edgewith the upturned flange 21. 'A pair of pins 22 and 23 are also providedupon the same face of the ring like member 3 and form guides to engagethe periphery of the flange of the cover and the upturned portion 21will engage over the flange of the cover and upon rotation of the sameunder the flange 21 any kinks or irregularities therein will be smoothedout thus permitting the cover to be used a large number of times, as ithas been the pract ce heretofore to discard the'covers when the flangeon the open end has become irregular, as it is then impossible toproperly seal the interstice between the cover and the ar.

From the foregoing description it becomes evident that I have provided aar cover wrench, which is composed of a minimum number of parts andwhich is easy to assemble and which will firmly grip ajar cover toremove the same from a jar without any undue pressure being applied tothe handles.

Having thus fully described my invention, its utility and mode ofoperation, what claim and desire to secure by Letters. Patent of theUnited States is 1. A jar cover wrench comprising'a closed ring likemember provided on one face with a pivot, the inner periphery of thesame provided with a gripping edge, a handle extending from the ringlike portion, a second member provided with a gripping edge lying in thesame plane with the gripping edge on the ring like member, the secondmember pivotallyconnected to the pivot on the first member and providedwith a handle extending in the same general direction as the firstmentioned handle and spaced therefrom so that movement of the handlestoward each other will cause the gripping edge on the second member tomove toward the gripping edge on the inner periphery of the ring likemember.

2. A jar cover wrench comprising a ring like member provided on aportion of its inner periphery with a plurality of serrations andfurther provided with a notched portion substantially diametricallyopposite the serrations, a handle extending from the ring like portion,a second member provided with an arcuate portion extending into thenotch in the ring like member and provided on its edge with a pluralityof serrations lying in 7 the same plane and extending toward theserrations on the inner periphery of the ring like member, the secondmember provided with a depressed portion, extending from the arcuateportion, lying in contact with the ring like member, a handle extendingfrom the depressed portion and lying in the same plane as the firstmentioned handle, and a pivot extending through the two members so thatmovement of the handles toward each other will cause the serrations onthe arcuate portion of the second member to move toward the serrationson the inner periphery of the ring like member.

3. A jar cover Wrench comprising a substantially ring like portionprovided on a portion of its inner periphery with a plurality ofserrations, a notched portion substantially opposite tothe serrations, ahandle extending from the ring like portion, a pair of pins positionedin the ring like portion and adjacent the edges of the notch therein, asecond member provided with an arcuate portion extending into the notchin the ring like member and provided on its edge with a plurality ofserrations lying in the same plane and extending toward the serrationson the inner periphery of the ring like member and further provided witha depressed portion extending from the arcuate portion and lying incontact with the ring like member, and provided. with a pair ofslotsthrough which the respective pins on the ring like member extend, ahandle extending from the de pressed portion and lying in the same planeas the first mentioned handle, the two members so arranged in relationto each other that movement of the handles toward each other will causethe serrations on the arcuate portion of the second member to movetoward the serrations on the inner periphery of the ring like member.

4. A jar cover wrench comprising a substantially ring like member, theinner periphery of the same provided with a plurality of serrations, apair of pivot pins extending from one face of the ring like member, ahandle extending from the ring like member, a second member provided onits edge with a plurality of serrations extending toward the serrationson the periphery of the ring like member, and further provided with apair of slots through which the respective pins on the ring like memberextend and a handle extending from the second member and spaced from thehandle on the ring like portion so that movement of the handles towardeach other will move the serrations on the secondmember toward theserrations on Ehe inner periphery of the ring like mem- 5. A jar coverwrench comprising a substantially ring like member, the inner peripheryof the same provided with a pluralitv of serrations, and furtherprovided with a notched out portion, a handle extending from the ringlike member and formed integrally therewith, a pair of pins secured tothe ring like member. and extending from one face thereof and positionedadjacent each edge of the notch provided in the inner periphery of thering like member, a second member provided with an arcuate portionextending into the notch in the ring like member and prov vided on itsedge with a plurality of serrations lying in the same plane andextending toward the serrations on the ring like member, the secondmember provided with a pair of slots extending at an angle toward eachother for engagement over the respective pins on the ring like member, ahandle formed integrally therewith and extending in the same generaldirection as the first handle and spaced therefrom, the parts being soarranged that movement of the handles toward each other will move theserrations on the .arcuate portion of the second member toward theserrations on the inner periphery of the ring like member.

6. A jar cover wrench, comprising a closed ring like member, the innerperiphery of the same provided with a gripping edge, a handle extendingfrom the ring like portion, a second member provided with a grippingedge and pivotally connected to one face of the ring like member andprovided with a handle extending in the same general direction as thefirst mentioned handle and spaced therefrom whereby movement of thehandles toward each other will cause the gripping edge on the secondmember to move toward the gripping edge on the inner periphery of thering like member.

t In testimony whereof I sign this specifica- RUDOLPH RATZLAFF.

